Finding the Fourth Proportional to 93,663.13, 129,256.14 and 51,220.75
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Solution
The fourth proportional to 93,663.13, 129,256.14 and 51,220.75 is: 70,685.19
Step by Step Solution
- Step 1: Write the proportion equation
93,663.13 : 129,256.14 = 51,220.75 : x - Step 2: Convert to fraction form
93,663.13/129,256.14 = 51,220.75/x - Step 3: Cross multiply
93,663.13x = 129,256.14 × 51,220.75 - Step 4: Simplify right side
93,663.13x = 6,620,596,432.91 - Step 5: Solve for x
x = 6,620,596,432.91/93,663.13 - Step 6: Final answer
x = 70,685.19
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.